﻿/**
 * password_strength_plugin.js
 * Copyright (c) 20010 myPocket technologies (www.mypocket-technologies.com)
 

 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:

 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 * 
 * @author Darren Mason (djmason9@gmail.com)
 * @date 3/13/2009
 * @projectDescription Password Strength Meter is a jQuery plug-in provide you smart algorithm to detect a password strength. Based on Firas Kassem orginal plugin - http://phiras.wordpress.com/2007/04/08/password-strength-meter-a-jquery-plugin/
 * @version 1.0.1
 * 
 * @requires jquery.js (tested with 1.3.2)
 * @param shortPass:	"shortPass",	//optional
 * @param badPass:		"badPass",		//optional
 * @param goodPass:		"goodPass",		//optional
 * @param strongPass:	"strongPass",	//optional
 * @param baseStyle:	"testresult",	//optional
 * @param userid:		"",				//required override
 * @param messageloc:	1				//before == 0 or after == 1
 * 
*/

(function ($) {
    $.fn.shortPass = 'Çok Kısa';
    $.fn.badPass = 'Zayıf';
    $.fn.goodPass = 'İyi';
    $.fn.strongPass = 'Güçlü';
    $.fn.samePassword = 'Şifre ve Kullanıcı Adı aynı.';
    $.fn.resultStyle = "";

    $.fn.passStrength = function (options) {

        var defaults = {
            shortPass: "shortPass", //optional
            badPass: "badPass", 	//optional
            goodPass: "goodPass", 	//optional
            strongPass: "strongPass", //optional
            baseStyle: "testresult", //optional
            userid: "", 			//required override
            messageloc: 1				//before == 0 or after == 1
        };
        var opts = $.extend(defaults, options);

        return this.each(function () {
            var obj = $(this);

            $(obj).unbind().keyup(function () {

                var results = $.fn.teststrength($(this).val(), $(opts.userid).val(), opts);

                if (opts.messageloc === 1) {
                    $(this).next("." + opts.baseStyle).remove();
                    $(this).after("<span class=\"" + opts.baseStyle + "\"><span></span></span>");
                    $(this).next("." + opts.baseStyle).addClass($(this).resultStyle).find("span").text(results);
                }
                else {
                    $(this).prev("." + opts.baseStyle).remove();
                    $(this).before("<span class=\"" + opts.baseStyle + "\"><span></span></span>");
                    $(this).prev("." + opts.baseStyle).addClass($(this).resultStyle).find("span").text(results);
                }
            });

            //FUNCTIONS
            $.fn.teststrength = function (password, username, option) {
                var score = 0;

                //password < 4
                if (password.length < 4) { this.resultStyle = option.shortPass; return $(this).shortPass; }

                //password == user name
                var containsUserName = false;
                var usernames = username.toLowerCase().split(' ');
                for (var ii = 0; ii < usernames.length; ii++) {
                    if (password.toLowerCase() == usernames[ii].toLowerCase())
                        containsUserName = true;
                }

                if (containsUserName) {
                    this.resultStyle = option.badPass;
                    return $(this).samePassword;
                }

                //password length
                score += password.length * 4;
                score += ($.fn.checkRepetition(1, password).length - password.length) * 1;
                score += ($.fn.checkRepetition(2, password).length - password.length) * 1;
                score += ($.fn.checkRepetition(3, password).length - password.length) * 1;
                score += ($.fn.checkRepetition(4, password).length - password.length) * 1;

                //password has 3 numbers
                if (password.match(/(.*[0-9].*[0-9].*[0-9])/)) { score += 5; }

                //password has 2 symbols
                if (password.match(/(.*[!,@,#,$,%,^,&,*,?,_,~].*[!,@,#,$,%,^,&,*,?,_,~])/)) { score += 5; }

                //password has Upper and Lower chars
                if (password.match(/([a-z].*[A-Z])|([A-Z].*[a-z])/)) { score += 10; }

                //password has number and chars
                if (password.match(/([a-zA-Z])/) && password.match(/([0-9])/)) { score += 15; }
                //
                //password has number and symbol
                if (password.match(/([!,@,#,$,%,^,&,*,?,_,~])/) && password.match(/([0-9])/)) { score += 15; }

                //password has char and symbol
                if (password.match(/([!,@,#,$,%,^,&,*,?,_,~])/) && password.match(/([a-zA-Z])/)) { score += 15; }

                //password is just a numbers or chars
                if (password.match(/^\w+$/) || password.match(/^\d+$/)) { score -= 10; }

                //verifying 0 < score < 100
                if (score < 0) { score = 0; }
                if (score > 100) { score = 100; }

                if (score < 34) { this.resultStyle = option.badPass; return $(this).badPass; }
                if (score < 68) { this.resultStyle = option.goodPass; return $(this).goodPass; }

                this.resultStyle = option.strongPass;
                return $(this).strongPass;

            };

        });
    };
})(jQuery); 


$.fn.checkRepetition = function(pLen,str) {
 	var res = "";
     for (var i=0; i<str.length ; i++ ) 
     {
         var repeated=true;
         
         for (var j=0;j < pLen && (j+i+pLen) < str.length;j++){
             repeated=repeated && (str.charAt(j+i)==str.charAt(j+i+pLen));
             }
         if (j<pLen){repeated=false;}
         if (repeated) {
             i+=pLen-1;
             repeated=false;
         }
         else {
             res+=str.charAt(i);
         }
     }
     return res;
	};
